@Errefae 

OneMesh does not support Ethernet backhaul so the connection would be over Wi-Fi only.

You can still move forward with the setup you want in having the devices wired and setting our range extender in AP Mode and connect an Ethernet cable. You would just not have mesh features or have the network nodes recommend the best one to connect to so it will be up to the client device on which to connect to. Another alternative would be to make the network names different for each node where you would manually select which you want to connect to in order to avoid any confusion.

@Errefae 

Isnt there a circularity here? You want to have good wifi coverage in a building. Presumably because you have wifi no go zones. (Like me in an old house with metre thick walls).  So you choose a oneMesh solution. Except that you cannot have a Mesh unless you do have good wifi coverage:- and hence do not need the product to start with.

I found this today when I sought to add an AX10 to my existing OneMesh install (of 2 RE190 and a MR600).  I bought the AX10 to replace an existing wifi router:- an unecessary replacement?

  @Solla-topee 

What happens if I set up repeater RE505X or RE603X in OneMesh mode. Then power off and connect an ethernet cable from router or switch to the repeater? I was testing and it seemed speed was faster. Repeater still shows in OneMesh mode in the App. Is it switching to AP mode automatically but still showing OneMesh Extender configuration?

  u cant have a Ethernet as a back haul, whats the point of the mesh then. lucky i didnt go out and buy, was about to go out and buy 6 routers. i want good wifi, and and good wifi mean i need the trunk line. 

  @Errefae 

Hello i have just bought

I was pretty sure that mesh will work with cable too... than what is the point of having one mesh devices. when you can not use cable.

I have concrete walls and metal doors in building and i have prepared cables. If you will set the same name you will lose your connection while changing places. 

i think official info in shops is misunderstanding, there is something like

"You can extend your repeater operability with Ethernet " at least in polish shops...

  @zml71 

Hello Zml71, I have bought RE-705 because thought that I can connect it with tp-link router via ethernet cable. When I recognize that this is not possible I have back to the polish page and read article again and found that there is info that you can use ethernet cable but then use it as a Access Point (not as a Range extender) -;>